A 1.4kg block is pushed up a frictionless 14 degree incline from point A to point B by a force with a magnitude of 6N. Points A and B are 1.2m apart. If the kinetice energies of the block at points A and B are 3J and 4J, respectively, how much work is done on the block by the force between point A and point B?

Question

A 1.4kg block is pushed up a frictionless 14 degree incline from point A to point B by a force with a magnitude of 6N.  Points A and B are 1.2m apart.  If the kinetice energies of the block at points A and B are 3J and 4J, respectively, how much work is done on the block by the force between point A and point B?

arindameducationusc · Answer

$$Work _{av}=K _{f}-K _{i}$$

Work done= Force*displacement